A cladistic analysis of Erotini (Lycidae) is carried out, resulting in revalidation of Dictyopterini nom. rev., proposal of Aferotini tr. n. and Flagraxina subtr. n. The genera Proteros gen. n. and Pyrotes gen. n. and eight new species: Proteros sempiternus sp. n., Taphomimus nanensis sp. n., Dictyoptera gansuensis sp. n., Helcophorus murzini sp. n., H. gobindanus sp. n., Greenarus belokobylskii sp. n., Eropterus glebulus sp. n. and Propyropterus (s. str.) plateroides sp. n. are described. Benibotarus sanguinipennis Nakane, syn. n. is placed in synonymy with Laterialis oculata (Gorham). Lycoprogentes Pic is transferred from Calochrominae to Taphini (Erotinae) and Microcoloberos Pic is transferred from Erotinae to Platerodinae. Erotides Waterhouse nom. rev. and Glabroplatyis Pic nom. rev. are revalidated from synonymy with Platycis Thomson. Punicealis miranda (Barovskij) nom. rev. is revalidated from synonymy with Laterialis oculata (Gorham). Platycis sculptilis (Say) is transferred to Erotides (s. str.), while Platycis cosnardi (Chevrolat), P. nasuta (Kiesenwetter), P. schneideri (Kiesenwetter), P. taiwana Kono, P. kanoi Nakane and P. matsudai Boc k are transferred to Erotides (Glabroplatycis); Benibotarus nigripennis Nakane & Ohbayashi is transferred to Greenarus Kazantsev and Pyropterus himalejicus Bourgeois to Lycoprogentes. Helcophorus Fairmaire, stat. n., Taphomimus Kazantsev, stat. n., Punicealis Kazantsev, stat. n., Laterialis Kazantsev, stat. n., and Greenarus Kazantsev, stat. n. are raised to the genus level, while Paralopheros Kazantsev is suppressed to subgeneric level within Propyropterus Nakane. The subgenus Tricostaeptera Kazantsev is transferred from Kolibaceum to Laterialis. Kleineria nom. n. is proposed for Kleinella Kazantsev, 1992 preoccupied by Kleinella Adams, 1860 (Mollusca). A key to the genera and subgenera and a check-list of Erotini and Dictyopterini of the World are provided.

Five new species of soldier beetles from the subfamilies Cantharinae and Silinae, Lycocerus elzbietae sp. nov., L. jonasi sp. nov., Rhagonycha acarigera sp. nov., Sucinorhagonycha groehni sp. nov. and Podosilis gedaniensis sp. nov., are described from Baltic amber. A female of Electronycha prussica Kazantsev, 2013 is described and illustrated for the first time. Attribution of Podistra (Absidia) kloevedali Fanti & Damgaard, 2018 to the genus Podistra Motschulsky, 1838 and to the subgenus Absidia Mulsant, 1862 is discussed.

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 Abstract Kazantsev, S.V. 2006. Comparative morphology of mandibular structures in lycid larvae and its phylogenetic implications (Polyphaga, Hexapoda) -Acta Zoologica (Stockholm) 87 : 229-238The morphology of the larval mandibular structures of the family Lycidae (Polyphaga) is characterized by facultative dicondyly, posterior articulation with long mandibular rods, lateral location of the anterior condyle and its articulation with a paired non-cranial structure. It is compared to that of Eucrustacea, Chilopoda, Entognatha, Microcoryphia and Zygentoma and found to be more reminiscent of the Entognatha. The phylogenetic implications of this conclusion are discussed, with the Pterygota and Dicondylia hypothesized to be non-monophyletic.